Indent syntax-highlighted code in a numbered or bulleted list

gistfile1.txt

    1. lorem ipsum
      ```perl
      use strict;
      ```
    2. dolor sit amet
          ```perl
          use warnings;
          ```
       1. consectetur adipiscing elit
       1. sed do
    1. eiusmod

1. lorem ipsum

use strict;

2. dolor sit amet

   use warnings;

   1. consectetur adipiscing elit
   2. sed do
3. eiusmod

https://stackoverflow.com/a/50284801/